William w



(No Model.)

W. W. KARSHNER.

GALVANIG BATTERY. No. 280,933. I Patented July 10, 1883.

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- WILLIAM w. KARSHNER, or WASHINGTON, .DIsTmcT or COLUMBIA.

I UNITED STATES PATENT OFFICE T GALVAN l C B'ATTE RY.

SPECIFICATION forming art of Letters Patent No. 280,933, dated J'uly 10, 1883,

i Application filed March 23, 18 83. (No model.) I

To all whom it may concern: Be it known that I, YVILLIAM W. KARSH- 1 NER, a citizen of the United States, residing at \Vashington, in the District of Columbia,

have invented certain new and useful I111 removal of any part of said battery when required, and the arrangement of the plates and their connections by which said plates can be the jar and the zinc disks suspended in said jar. Fig. 2 is a detail view, showing the zinc disks separated" by metal rings and held in place by a metal rod.-

Similar letters refer to similar parts throughout-the drawings, 7

In the drawings, A represents an ordinary glassjar, formed of suitable size and open at the top. I

B is the ordinary winged copper plate or plates in the bottom of the jar. c is the insulated copper wire passing from the copper up through the fluid forming the positive electlOdB. A series of circular zinc disks, D D D-, are formed of suitable'size to permit of sufficient space between the edges of the same and the inside of the jar. Said disks are held at suitable distances apart (from a half-inch to one inch) by metallic thiinbles g, preferably formed of block-tin or lead.

perforations set-screws i and i;

'0 represents a metal rod, formed preferably;

of brass. Said rod is formed to pass looselyj through perforations in the center of the disks D, D, and D The inner end of said rod is formed with a head, against which the lowerf disk, D, rests. Above disk D, surrounding the rod, is placed thi mbleg. Above thimble g and resting on the. end of the same is disk? 7 D. Above disk D is thimbleg, and above" said thimble and resting on the same is diskl D By this construction the number of disk-i plates may be increased indefinitely. By-this arrangement of the disks I get an increased quantity and intensity of electrical force pro-j portionate to the number of disks used. An

adjustable grip-piece, 'a, has a central perfo ration, through which rod 0 passes, and has; i, inserted on each side through screw-threaded} -7o brass rod 0 and the inner end of screw 5:

rod 0 by means of said screw 2'.

rod O passes, is adapted to rest by its underi face on the upper edges of the jar A, and the; rod 0 is held at any desired position within Between they I is inserted the inner end of the conductingwire b. Said wire is. held in contact with the;

A cross-bar, h, having acentral perforation, through which the jar A'by means of the grip-piece a and the;

binding-screw i.

The operation is as follows: The winged cop-i per plate is placed in the bottom of the jar A.]

The conducting-wire c is attached and carried,

out over the edge of the jar A. A sufficient;

amount of sulphate of copper is then placed between the wings of plate B, when a sufficient amount of acid and water is added, then the zinc plates are placed in position and are adjusted to the right position above the copper plate 13 by means of the cross-bar h, the grip-piece a, and the bindingsorew '6. The conducting-wire b is then inserted between the end of screw '5 and the rod 0, when, by joinvanic action immediately takes place.

'ing the wires 0 and b to form the circuit, gal 5 One' great advantage in this construction of 7 cell over other modes of structure, besidestheincrease of quantity and intensity of current,.

is the lively condition in which it keeps itself loo 7 while on open circuit, with little or no con sumption of material, for almost any length of time, and, further, its prompt and continuous action when put on closed 'circuit, making it and usually soldered thereto.

equally valuable for telegraph, telephone, and alarm purposes, or electroplating purposes.

' For the purpose of feeding in sulphate of copper to keep the battery in full strength, perforations j, j, and j are made in line with each other through plates or disks 1) D D and the sulphate of copper is passed to the bottom of the jar A, between the wings of the copper plate B, by means of a tube or funnel.

Heretofore the zinc plates in abattery have been suspended in the solution by means of a zinc neck or a zinc rod attached to the plate The great disadvantage of such a construction is that the acid in the battery solution attacks the zinc neck or rod and eats it off, thus causing the plates to drop down and destroy the action of the battery. The great advantage of a brass or metallic rod used in my invention for suspending said plates is that the acid does not attack said rod, and therefore does not injure it.

Having described my invention, what I claim and desire to secure by Letters Patent is 1. A galvanic battery consisting of a jar containing sulphate of copper and water, a

Winged copper plate resting on the bottom of said jar, within said solution, a conductingwire having its inner end securedto said plate,

as shown, and a series of perforated circular zine plates separated by thimbles and sus pended in the battery solution by a solid inetallic rod heldin place by a cross-bar and screw-nuts, said screw-nuts connecting to said rod one end of a conducting-Wire, substan-.. tially as shown and specified.

2. The combination ofthe jar A,ho1ding sulphate of copper, acid, and water, .the copper plate B, and the wire 0, with the disks D D D", thimbles g and g, rod G, having head f, crossbar h, grip-piece a, thumb-screws v3 and i, and wire b, substantially as shown and specified.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM XV. KARSHNER. \Vitnesses:

D. P. HoLLowAY, H. J. ENGLAND. 

